Dae Ig Chang

Title: Dae Ig Chang: Innovator in Satellite Communication Technologies

Introduction

Dae Ig Chang is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of satellite communication, holding a total of 12 patents. His work focuses on enhancing communication methods and systems, particularly in the context of time division multiple access (TDMA) and single channel per carrier (SCPC) technologies.

Latest Patents

One of Dae Ig Chang's latest patents is an "Apparatus and method for accessing star network/mesh network of time division multiple access (TDMA)/single channel per carrier (SCPC) integrated satellite communication." This invention discloses a method for a terminal in a satellite communication system to receive time slot resources from a central station. It operates in a TDMA star network communication mode, allowing for efficient communication between the central station and the terminal. The method includes transferring a TDMA mesh network connection request message and receiving traffic burst time plan (TBTP) information, enabling seamless communication between terminals.

Another notable patent is the "Source-channel combined coding method and satellite broadcasting system using the same." This method involves determining variations in channel signal-to-noise ratio (SNR) and selecting a suitable MODCOD based on predefined SNR thresholds. It calculates a source coding rate and extracts network abstraction layer (NAL) units from video frames to ensure effective data transmission. The process culminates in LDPC coding and modulation of the baseband frame, enhancing the reliability of satellite broadcasting.

Career Highlights

Dae Ig Chang has worked with esteemed organizations such as the Electronics and Telecommunications Research Institute and Yonsei University. His experience in these institutions has allowed him to develop and refine his innovative ideas in satellite communication technologies.

Collaborations

Throughout his career, Dae Ig Chang has collaborated with notable colleagues, including Ho Jin Lee and In Ki Lee. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Dae Ig Chang's contributions to satellite communication technologies have established him as a key figure in the field. His innovative patents reflect his commitment to improving communication systems, making significant strides in the industry.